8x 18" LMS 5400 Ultras Sealed to 27 Cube 15hz Ported Build - Page 7 - AVS Forum | Home Theater Discussions And Reviews

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post #181 of 583 Old 02-28-2014, 07:37 PM - Thread Starter
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post #182 of 583 Old 02-28-2014, 07:40 PM
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Notnyt have put any dampening material in any of the subs you've built? I'm asking because I'm trying to decide if I should or not in my subs that I've built.

Thanks in advance!
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post #183 of 583 Old 02-28-2014, 07:41 PM - Thread Starter
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Quote:
Originally Posted by jbrown15 View Post

Notnyt have put any dampening material in any of the subs you've built? I'm asking because I'm trying to decide if I should or not in my subs that I've built.

Thanks in advance!

Nope, didn't see a need. I've posted decay waterfalls... you can inspect wink.gif
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post #184 of 583 Old 02-28-2014, 08:38 PM
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aw yes.

6luGPGwl.jpg

So is this #4? biggrin.gif
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post #185 of 583 Old 02-28-2014, 08:39 PM
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The finale!
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post #186 of 583 Old 02-28-2014, 08:40 PM - Thread Starter
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So is this #4? biggrin.gif
yes =)
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post #187 of 583 Old 02-28-2014, 08:46 PM
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Time to change your profile pic! smile.gif
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post #188 of 583 Old 02-28-2014, 08:47 PM
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the password is...M45 Quadmount. :-)

Listen. It's All Good.
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post #189 of 583 Old 02-28-2014, 08:52 PM - Thread Starter
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Time to change your profile pic! smile.gif
first world problems, I won't be able to fit it. frown.gif gonna take it inside when it dries and mount the drivers
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post #190 of 583 Old 02-28-2014, 08:53 PM
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yes =)

Hell yeah. smile.gif
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post #191 of 583 Old 02-28-2014, 10:20 PM
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Oh muscle up and get that dude up there!!! 💪😤
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post #192 of 583 Old 02-28-2014, 10:49 PM
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This thread is what I needed! Sure, the build is incredible...but I'm putting this build up to show the wife first, THEN, hit her with the full marty.
Seriously though, great work, most impressive.

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post #193 of 583 Old 02-28-2014, 11:26 PM
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Seriously awesome build. I cannot imagine listening your system at close to full capacity. It must be incredible. Great work. Large ported subs are tons of fun!

Getting things ready for a new theater room build at the new house.
Equipment so far- (8) SI HT18 in mini martys, speakerpower SP2-12000, Denon 4311ci (may replace), MINIDSP 10x10HD, Harmony Elite, Oppo BDP-103D
TBD- Projector, AT Screen, speakers, acoustics, control system
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post #194 of 583 Old 02-28-2014, 11:49 PM
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#4 man hell ya!! I've been moving heavy boxes as well and 22 cinder blocks down stairs for my back stage area last few days whew.


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post #195 of 583 Old 03-03-2014, 03:41 PM
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How's it coming?
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post #196 of 583 Old 03-03-2014, 04:03 PM - Thread Starter
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How's it coming?

Going to mount the subs in #4 and test after I finish up some work. Basically, all done, I just need to get the subs mounted and lift the enclosure.
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post #197 of 583 Old 03-04-2014, 02:21 AM - Thread Starter
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Yes, I need to dust... and vacuum. This build made quite a mess.

All 4 are done, I'm just waiting for assistance lifting it. Tested it earlier, no abnormal noises so that's good.

TprSggt.jpg
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post #198 of 583 Old 03-04-2014, 03:14 AM
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Not...starting to look like your place is the layover point for a touring group and their speaker stacks...biggrin.gif
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post #199 of 583 Old 03-04-2014, 05:27 AM - Thread Starter
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Not...starting to look like your place is the layover point for a touring group and their speaker stacks...biggrin.gif

Almost! At least I'm done building =]
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post #200 of 583 Old 03-04-2014, 06:46 AM
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Ill be arriving in long island from Maine tonight, and will be there tomorrow through sunday if you need help moving that beast!

How much does it weigh?
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post #201 of 583 Old 03-04-2014, 09:14 AM - Thread Starter
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Ill be arriving in long island from Maine tonight, and will be there tomorrow through sunday if you need help moving that beast!

How much does it weigh?

Somewhere north of 400lbs.
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post #202 of 583 Old 03-04-2014, 09:53 AM
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Yikes. Thats gotta be a 4 person job.

When I did carpet installation down there we encountered heavy items, pianos tv's, etc but never a freaking sub that heavy!
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post #203 of 583 Old 03-07-2014, 12:33 AM - Thread Starter
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post #204 of 583 Old 03-07-2014, 01:20 AM
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Congrats man and hopefully your back feels ok!!

JBL Pro Cinema/Crown power/Sony SXRD
MANCHESTER UNITED!!
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post #205 of 583 Old 03-07-2014, 01:51 AM
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They're stacked!

WOOT!!

Where da pics? redface.gif
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post #206 of 583 Old 03-07-2014, 02:28 AM - Thread Starter
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WOOT!!

Where da pics? redface.gif

EQbmXH4.png

jdcIY3i.png

uihYQh3.png

wink.gif
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post #207 of 583 Old 03-07-2014, 03:08 AM
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Impressions?

Maybe a full tilt video with an EDM track with a focus on 40-80Hz and a SPL meter at LP? I'd like to see that.
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post #208 of 583 Old 03-07-2014, 03:20 AM - Thread Starter
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Impressions?

Maybe a full tilt video with an EDM track with a focus on 40-80Hz and a SPL meter at LP? I'd like to see that.

My meter doesn't read high enough. =[

Impressions... well.. it's giant subs that are really loud and sound really good smile.gif I'm running XT32 still.
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post #209 of 583 Old 03-07-2014, 03:25 AM
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My meter doesn't read high enough. =[

Impressions... well.. it's giant subs that are really loud and sound really good smile.gif I'm running XT32 still.

A video would still be fun to see smile.gif

What meter do you have?

I would also be curious to see the air movement from the port in a video if it is not too much hassle.

Could you post a full range response and phase graph with no smoothing?
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post #210 of 583 Old 03-07-2014, 03:30 AM - Thread Starter
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A video would still be fun to see smile.gif

I would also be curious to see the air movement from the port in a video if it is not too much hassle.

Could you post a full range response and phase graph with no smoothing?

I posted phase response here:

http://www.avsforum.com/t/1516234/8x-18-lms-5400-ultras-sealed-to-27-cube-15hz-ported-build/100_100#post_24387780

As for video, I've posted one before once I built them, let me see if I can find another. It's really not impressive as the cones don't move much.

You can grab a video here: https://drive.google.com/uc?export=download&confirm=vNli&id=0B4dxOh63yRQ4REFwaWhJMTFkVEk

Youtube is 30fps, and that's encoded at 60, so I don't want to kill the framerate and introduce the awful stutters youtube does. I'll eventually re-encode it. Some slow-mo in there too, enjoy wink.gif
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